<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Page Not Found</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            text-align: center;
            background-color: #f4f4f4;
            color: #333;
            padding: 50px;
        }
        .container {
            margin: 100px auto;
            max-width: 600px;
            padding: 20px;
            background-color: white;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }
        h1 {
            font-size: 48px;
            margin-bottom: 20px;
        }
        p {
            font-size: 18px;
        }
    </style>
</head>
<body>
<div class="container">
    <h1>404 - 页面未找到</h1>
    <p>抱歉，我们找不到您请求的页面。</p>
    <p>请检查您输入的URL或返回<a href="/">首页</a>。</p>
</div>
</body>
</html>
